METHOD FOR PREPARING FLUORINE-CONTAINING ANILINES

FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to preparing fluorine-containing anilines of the general formula: NH2- C6X1X2X3X4X5 where X1, X2, X3, X4, X5 are fluorine, chlorine, bromine, iodine or hydrogen atoms being at least one of them is fluorine atom and another is hydrogen atom. Method is performed by the initial substitution of fluorine atom in benzene ring of polyfluorinated benzotrifluoride for amino-group by aminating agent to form fluorine-containing aminobenzotrifluoride where trifluoromethyl group is replaced for hydrogen atom by its heating in mineral medium. Polyfluorinated benzotrifluoride of the general formula: CF3-C6Z1Z2Z3Z4Z5 where Z1, Z2, Z3, Z4, Z5 are fluorine, chlorine, bromine, iodine or hydrogen atoms is used as the parent substance being at least two of them are fluorine atoms. Ammonia or ammonia in solvent medium is used as aminating agent. Process is carried out in autoclave at temperature 40-140 C. Invention provides reduction of economical indices of process and expanded assortment of end fluorine-containing anilines. EFFECT: improved preparing method. 5 cl, 3 ex